- A
Identity provider sign-in logs, because they show source IP, MFA status, and session creation details.
Identity provider sign-in logs are the fastest way to validate where the session came from, whether MFA succeeded, and whether a token or session was issued. That helps distinguish a legitimate login from suspicious access. They also provide the baseline needed to correlate later mailbox activity with the same identity.
- B
Mailbox audit logs, because they record rule creation, forwarding changes, and other post-login mail actions.
Mailbox audit logs show exactly what was changed inside the mailbox after authentication, including forwarding rules and inbox modifications. Those events help confirm whether the attacker established persistence after gaining access. They are more relevant than broad infrastructure logs because the suspicious activity is happening inside the email service.
- C
DHCP lease logs, because they identify the internal workstation that first received the suspicious email.
Why wrong: DHCP logs can help map a device to an IP address, but they do not explain a cloud mailbox forwarding rule or a foreign sign-in. They are too indirect for confirming account takeover or token abuse in this scenario.
- D
Print server logs, because mailbox forwarding often causes documents to be printed unexpectedly.
Why wrong: Print logs are unrelated to sign-in origin and mailbox rule creation. They would not provide evidence about how the account was accessed or whether an attacker used a valid session token.
- E
Physical badge-access logs, because they prove whether the user was in the office when the login occurred.
Why wrong: Badge logs may support an alibi check, but they do not prove malicious access or identify the session source. They are useful only as supporting context, not as the first source for this mailbox compromise investigation.
Quick Answer
The answer is mailbox audit logs and identity provider sign-in logs. Mailbox audit logs are correct because they capture rule creation, forwarding changes, and other post-login mail actions, directly confirming whether a forwarding rule was added after the suspicious sign-in. Identity provider sign-in logs, such as Azure AD sign-in logs, are correct because they record the source IP address, MFA status, and session details, allowing the analyst to verify if the 02:14 login came from an unusual location or lacked MFA—key indicators of account takeover rather than token abuse. On the Security+ SY0-701 exam, this scenario tests your ability to distinguish between credential theft and session hijacking by correlating pre-authentication logs (sign-in logs) with post-authentication actions (mailbox audit logs). A common trap is focusing only on network logs, which miss the mailbox-level evidence. Memory tip: “Sign-in shows the door; mailbox shows the damage.”
SY0-701 Security Operations Practice Question
This SY0-701 practice question tests your understanding of security operations. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A SIEM correlation rule fires for a Microsoft 365 executive mailbox. At 02:14, the account signs in from a new country. At 02:17, the mailbox gets a forwarding rule that sends all mail to an external address. The user says they did not travel and did not create any rules. Which two log sources should the analyst review first to confirm whether this is account takeover or token abuse? Select two.
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"first"Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Identity provider sign-in logs, because they show source IP, MFA status, and session creation details.
Option A is correct because identity provider sign-in logs (e.g., Azure AD sign-in logs) capture the source IP address, MFA status, and session details. In this scenario, reviewing these logs can reveal if the sign-in at 02:14 came from an unusual IP or lacked MFA, indicating a potential account takeover rather than token abuse.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Identity provider sign-in logs, because they show source IP, MFA status, and session creation details.
Why this is correct
Identity provider sign-in logs are the fastest way to validate where the session came from, whether MFA succeeded, and whether a token or session was issued. That helps distinguish a legitimate login from suspicious access. They also provide the baseline needed to correlate later mailbox activity with the same identity.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Mailbox audit logs, because they record rule creation, forwarding changes, and other post-login mail actions.
Why this is correct
Mailbox audit logs show exactly what was changed inside the mailbox after authentication, including forwarding rules and inbox modifications. Those events help confirm whether the attacker established persistence after gaining access. They are more relevant than broad infrastructure logs because the suspicious activity is happening inside the email service.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
DHCP lease logs, because they identify the internal workstation that first received the suspicious email.
Why it's wrong here
DHCP logs can help map a device to an IP address, but they do not explain a cloud mailbox forwarding rule or a foreign sign-in. They are too indirect for confirming account takeover or token abuse in this scenario.
- ✗
Print server logs, because mailbox forwarding often causes documents to be printed unexpectedly.
Why it's wrong here
Print logs are unrelated to sign-in origin and mailbox rule creation. They would not provide evidence about how the account was accessed or whether an attacker used a valid session token.
- ✗
Physical badge-access logs, because they prove whether the user was in the office when the login occurred.
Why it's wrong here
Badge logs may support an alibi check, but they do not prove malicious access or identify the session source. They are useful only as supporting context, not as the first source for this mailbox compromise investigation.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may overlook the need to check both sign-in and mailbox audit logs, assuming one log source alone can distinguish between account takeover and token abuse, when in fact the combination of identity provider logs and mailbox audit logs is required to correlate the sign-in session with the rule creation action.
Trap categories for this question
Scenario analysis trap
DHCP logs can help map a device to an IP address, but they do not explain a cloud mailbox forwarding rule or a foreign sign-in. They are too indirect for confirming account takeover or token abuse in this scenario.
Detailed technical explanation
How to think about this question
Token abuse often involves an attacker using a stolen refresh token to authenticate without MFA, which would not appear as a new sign-in event in identity provider logs. However, if the sign-in at 02:14 shows a successful MFA challenge, it suggests token abuse; if it shows no MFA or a new device, it points to account takeover. Mailbox audit logs (Option B) are also critical because they record the exact time, user, and client application that created the forwarding rule, helping to correlate with the sign-in session.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this SY0-701 question test?
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Identity provider sign-in logs, because they show source IP, MFA status, and session creation details. — Option A is correct because identity provider sign-in logs (e.g., Azure AD sign-in logs) capture the source IP address, MFA status, and session details. In this scenario, reviewing these logs can reveal if the sign-in at 02:14 came from an unusual IP or lacked MFA, indicating a potential account takeover rather than token abuse.
What should I do if I get this SY0-701 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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